Setting TACACS server priority?

[JJevans_2112]

Hello All,

Is there a way that I can set a priority to which TACACS server the router / switch uses in IOS? We are migrating from ACS to ISE and would like to add the ISE configuration and take a higher priority for AAA over ACS. Then once we can verify in ISE remove the ACS config. 

Any insight is appreciated.

Thank you,

J

[balaji.bandi]

The order is top to bottom, so you need to remove and add ISE fist and next ACS, test one device, if you deploying mass devices.